Trailer king pin lock



FIG. 1 is a perspective view of a trailer king pin lock showing my new design;

FIG. 2 is a right-side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view of a second embodiment thereof;

FIG. 7 is a right-side elevational view thereof;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a top plan view; and

FIG. 10 is a bottom plan view thereof. 

The ornamental design for a trailer king pin lock, as shown and described. 